Directional actuator control circuit

[Rayhaan]

I'll email the manufacturer and tell you guys what's the set up with this one. If the actuator does have an in built surge flyback mechanism due to limit switches with diodes built in would that mean that I don't need to protect the circuit from this anymore?

 

[Averagesupernova]

The diodes in the linear actuator are there for current steering to be able to reverse the motor when one limit switch had been opened. They do nothing for suppression of the flyback pulse.
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I don't really know what you have to protect anyway. If you simply use a rocker switch or pair of individual switches, it's unlikely any damage will occur.

 

[Rayhaan]

Thanks for clearing that up

 

[kinsler33]

I never saw a good description of the actual application. For example, it sounds like it handles a considerable load, and must have some safety features and perhaps a remote control. But I don't recall reading how large it might be. If we're working on the order of 1 meter or more and, say, a 100kg load, the first thing that comes to mind would be a garage-door opener. They've solved most of the problems that were posed here.